A shovel according to an example of the present invention includes a lower running body (1), an upper turning body (3), an engine (11) mounted on the upper turning body (3), a motor generator (12) driven by the engine (11), a power storage device (19) for storing electric power generated by the motor generator (12), an electric motor (21) for supplying regenerative electric power to the power storage device (19), a selective reduction catalyst system (100) for purifying exhaust gas by injecting a reducing agent stored in a reducing agent storage tank (31) into an exhaust pipe of the engine (11), a selective reduction catalyst system controller (93) for detecting an abnormality of the selective reduction catalyst system (100), and a control device (30) that performs abnormality determination on the selective reduction catalyst system (100) based on a detection result of the selective reduction catalyst system controller (93). The control device (30) continues to control the electric motor (21) before and after the abnormality determination.
SHOVEL AND SHOVEL CONTROL METHOD
SCHAUFEL UND SCHAUFELSTEUERUNGSVERFAHREN
PELLE, MÉCANIQUE ET PROCÉDÉ DE COMMANDE DE CELLE-CI
2019-03-13
Patent
Electronic Resource
English
SHOVEL, SHOVEL CONTROL DEVICE, AND SHOVEL SUPPORT DEVICE
European Patent Office | 2022
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